CS5529 Ver la hoja de datos (PDF) - Cirrus Logic

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CS5529

16-bit, Programmable ∆Σ ADC with 6-bit Latch

Cirrus Logic 

CS5529

Configuration Register Descriptions

D23(MSB) D22

D21

D20

D19

D18

D17

D16

D15

D14

D13

D12

A1

A0

D3

D2

D1

D0

NU

LPM

WR2

WR1

WR0

U/B

D11

D10

D9

D8

D7

D6

D5

D4

D3

D2

D1

D0

NU

NU

NU

NU

RS

RV

PF

PSS

DF

CC2

CC1

CC0

BIT

NAME

VALUE

FUNCTION

D23-D22 Latch Outputs, A1-A0 00 R* Latch Output Pins A1-A0 mimic the D23-D22 Register bits.

D21-D18 Latch Outputs, D3-D0 0000 R* Latch Output Pins D3-D0 mimic the D21-D18 Register bits.

D17

Not Used, NU

0 R Must always be logic zero.

D16

Low Power Mode,

LPM

0 R Normal Mode (≅ 2.5 mW)

1

Reduced Power Mode (≅ 1 mW)

D15-D13 Word Rate, WR2-0

(Note: Rates valid for

XIN = 32.768 kHz)

000 R 15.0 Sps (2180 XIN cycles)

001

30.0 Sps (1092 XIN cycles)

010

61.6 Sps (532 XIN cycles)

011

84.5 Sps (388 XIN cycles)

100

101.1 Sps (324 XIN cycles)

101

1.88 Sps (17444 XIN cycles)

110

3.76 Sps (8724 XIN cycles)

111

7.51 Sps (4364 XIN cycles)

D12

Unipolar/Bipolar, U/B

0 R Bipolar Measurement mode

1

Unipolar Measurement mode

D11-D8 Not Used, NU

0 R Must always be logic 0.

D7

Reset System, RS

0 R Normal Operation

1

Activate a Reset cycle. To return to normal operation this bit must

be written back to logic zero.

D6

Reset Valid , RV

0

No reset has occurred or bit has been cleared (read only).

1 R Valid Reset has occurred. (Cleared when read.)

D5

Port Flag, PF

0 R Port Flag mode inactive

1

Port Flag mode active

D4

Power Save Select,

0 R Standby Mode (Oscillator active, allows quick power-up)

PSS

1

Sleep Mode (Oscillator inactive)

D3

Done Flag, DF

0 R Done Flag bit is cleared (read only).

1

Calibration or Conversion cycle completed (read only).

D2-D0 Calibration Control

Bits, CC2-CC0

000 R Normal operation (no calibration)

001

Offset -- Self-Calibration

010

Gain -- Self-Calibration

011

Offset self-cal followed by Gain self-calibration

100

Not Used.

101

Offset -- System Calibration

110

Gain -- System Calibration

111

Not Used.

* R indicates the bit value after the part is reset

20

DS246F5

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